The accurate algorithm of adapting to power swing, presented in this thesis, applies full-cycle Fourier algorithm and difference one as a digit filter, firstly calculates the frequency and then reckons at the corresponding frequency.
本文提出的自适应振荡过程的精确算法把全波傅氏算法加差分滤波算法作为了数字滤波器；将其输出用短数据窗先精确计算出振荡过程中对应时刻系统的频率；然后再求出对应频率下的。
参考来源 - 微机保护自适应算法和暂态特征量算法的研究Through comparison of all sorts of sampling methods, the conclusion is obtained: under the sampling rate of 12 point/cycle the Fourier algorithm would meet the need of both accuracy and speed.
通过对各种采样算法的分析，采用具有完全滤掉各种整次谐波和纯直流分量功能的傅氏算法且采样率为12点/周的交流采样方案，它是能兼顾精度与速度的“最佳”组合。
参考来源 - 基于WorldFIP现场总线的微机电量变送器的开发Theresult indicates that the Fourier algorithm combined with the mid-value filteringalgorithm can reach the highest precision, and accuracies of up to±0.1% for analogquantity measurement and ±0.01Hz for frequency measurement have been achieved,respectively.
结果表明采用中值滤波结合付氏算法计算出的模拟量有效值精度最高,可以达到±0.1%。 频率测量可以精确到±0.01Hz。
参考来源 - 基于DSP的电力信号采集处理板的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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